Type-writing machine.



PATENTED MAY 8, 1906 H. s. MoGORMAGK. TYPE WRITING MACHINE.

APPLIGATION FILED FBI-3.16, 1905.

5 SHEETSSHEET 1,

H M INN "NE: W/ Em MEME l W l MR3, MN N H. S. Mo-GORMACK.

TYPHWRITING MACHINE-K APPLICATION I'ILED FBB.16.1905,

WITNESSES:

' PATENTED MAY 8, 1906.

SHEETS-SHEET 2.

ATTORNEY PATENTED MAY 8 1906.

H. S. MOUORMAGK. TYPE WRITING MAGHZNE,

APPLICATION TILED FEB.16.1905.

5 SHEETS-SHEET 3.

PATENTED MAY 8, 1906.

H. S. MQGORMACK,

TYPE WRITING MACHINE.

APPL IOATION FILED FEB.16.1905.

6 SHEETSSHBET 4 arm/e 13/ PATENTED MAY 8, 1906 H. S; MOGORMACK.

TYPE WRITING MACHINE.

APPLICATION FILED FEB. 16. 1905.

5 SHEETSSEEET 5 M W W a m/ /L i3,' andfshowing in working position alatch whieh'serves as a temporarylock between the platen and theplaten-driving crank when the latter is pressed down to effectconnection Q'thithe plateng Fig. 6 shows the platen- I "yin g crank andthe parts directly fixed thereto. Fig. '7 is a view similar to Fig. 5,but howin the latch in normal ineffective posiion.- lig'. 3 is aviewsimilar to Fig. 7, but roomitting the latch. "Fig. 9 is a perspective;view of the latch. Figs. 10 to 13 are perspective views illustratingthe operation of the latch, &c., Fig. 10 showing the parts in normal"position with the crank-gear in its elevated positionof disuse, and thelatch held out of workingposition by a feet which is provided uponv'saldgear. -Fig. 11 is similar to Fig. 10, but shows the crank gear ashaving been def pressedto becomaconnected to the platen,and so. as beinglocked'in its de re'ss'ed position by the engagementof thelatc withsaidfoot. Fig.

12 is the same as Fig.1 1 except that the gear has been rotated,(together with the platen,) 1' (said foot sliding'i'n eonta'ctwith acircular step 525 r or ring which is fixed to the grated-frame andconcentric withsaid gear. ig. 13shows the gearrotated back to avointbeyond norma osition .(shown at ig..1())- that is, be-

, en the latch-the gear .havingnow been elee.

- 0 vated-"b means provided for that purpose norma position, fromwhichposition it is rotated by suitable means to the Fig. position, forcingsaid latch out of the way, .1m a =--1.- 1 3 5 {11' designates the usualcylindrical platen of an Un erwood'type-writing machine fixed upon anaxle 12, journaled in a platen-frame ,13, the ends of the axleprojecting from the platen-frame and having finger-wheels 14 and15-fixed thereon. By means of either finger wheel the. platen may berotated forwardly or backwardly to an unlimited-extent. The

. platen is also. provided with the ,usual hnespaeing devices, including.a line-spacing 4 5 wheel 16, rigid withthe platen and advancedintermittently by a pawl 17, which is oper- "ated in the usual manner bya slide 17 and a lever 17 a sp'ring-detent 17 being employed to retainthe-'iline sp'ace wheel by engaging 501 the notches thereof and beingadapted to ride -over;the.teeth-18,;with which said. wheel is u y p sdzif" Fixed upon the plateneaxle 12 by means of ja hub 19 is abevel-pinion 20,- having the same number of teeth as the line-spacewheel 16.

Arrgn ed horizontall over said pinion and po -ma y out of mes therewith1s a bevelear or curved rack 21 of greater radius than 6c said gear mayeffect an entire or inore'than an entire revolntaonof sard pinion andplaten, -.Sa1d gear21 asiixedilpon a vert cal a crank 23 by means of ascrew 2, ,.Said crank l aymg a manually-operable part or handle forwardstroke of t e pinion 20, so that a partial revolution of g v 1ub orshaft 22. Upon the top ofthe latter is fixed 25. The crank and gear arenormally held up by means of a compressionspring 26, but may be presseddown at any time to bring said gear into mesh with said pinion, so thatthe crank may become enabled to rotate the platen. 'Said shaft is hollowand works up mounted upon a carriage 32. It wi be seen that saidplaten-frame com rises end leces 33 and34,'upon the latter 0 which saiplate 31 is fastened, while a vertical plate 35, similar to the endpiece 34, is fixed upon: said platen-frame at the right-hand end of theplaten and has a bearing 36 for the platen-axle similar to thebearing'37 u onthe end piec'd 34. It will. also be noticed t lat thehorizontalplate 31 is secured by screws 38 to fianges39,

formed upon said plates 34 and 35, thus forming a'frigid'structure. Atie-rod 40 extends horizontallyv through the plates 33, 34, and 35 andis rigidly connected toeach, said tie-rod forming part of theusualstructure of 9 5. the platen-frameof an Underwood t e-writingmachine.The s ring 26 works etween a shoulder lk-formed upon the lower end orsaid stud 27, and a shoulder 42,-formed within said crank-shaft 22. v l10 Connection between the crank23 and the platen 1 1 is maintained durinthe retraction of theplaten by means of aoot 43, having the form of alug fixed u on the upper face of thebevel-gear 21,.said ug being adaptedto bear against a step or ring 44, which is concentric with the axis 22of the bevel-gear,

said ste being formed or provided with acylindrica support or body 45,having a flange 46, the latter being secured by screws 47 and no nuts orlugs 48 to the under side of the horizontal plate 31. N o'rmally thefoot or lug 43 occupies a recess 49, formed in the step or ring 44; butwhen the crank and gear'are pressed down and rotated said foot rides 115 u on the under surface bf the step 44, the

p aten of course being caused to turn or oscillate with the crank; v Thereturn stroke'of the crank is limited by a stop 50, fixed 'u on the late31; but the 1:20

lie cra (which, it will be seen, effects .a backward rotation of theplaten) is.limited by an adjustable stop 51,

carried by an arm 52, that is pivoted loosely upon the crank shaft 22andconfin-ed by a :25 col1ar-53,-fixed.u on the latter, said arm 52resting upon sail plate .31. By means of this" arm-the stop may be swun.to any de'; sired position concentrically wit thelcranl: shaft'22'=i"lo'hol,d the stop where'adjustejd i r 3o to agree with the teeth '18of theline-spacing I? formed upon: the end of'a bar 57, pivoted at i andsaid jafid it will be understood that by varyin the three-fourths of acircle, as seen at 1',

the opposite face of the rack from the teeth 55, a; 4o

" in pro er moved by the ear through'an are exactly ""a latch 1 pivofi dat 66 within the cyl n- "23 through an .a'rcequal to the distance from"one tooth to the next will effect a rotation tent and moving it frompoint to point along regulated to any desired extent between a effect a.movement of the 'p aten through 7 single vibration of the crank. Inpracticing, however Ihave not found it necessary and the a circular rack54 is rovided concentric with said crank shaft an consisting of acircular series or row of teeth 55, formed at intervals wheel 16.'Al'rotative movement of the crank .of the l.,platen equal to thedistance from tooth tqtooth 18 of said line-space wheel. Preferably thepinion 20 is materially smaller 58 to the arm 52, a spring 59 holdingsaid detentin e agement with said rack or notches her being providedwith a fingerpiece 60 for convenience in elevating the desaid' rack. Badjusting stop 51 in this way the stroke of t e crank 53 and platen maybe sl ght platen movement and a rotation of considerably more than anentire revolution,

proportions of the gears it is racticab e to even two revolutions ormore, if desired, by a to extend the teeth 55 through more than 2. out

this giving'a stroke of about one and a half platen revolutions. The arm52 isprovided at its free end with a finger 61, which engages cove 62being formed in the under side 0 thh rack; into which saidfin erprojects. The stop 51 may be'set wit accu racy by reference .toa.scale-63 u on the plate 31, the stopbein provided wit an index 64 tocooperate wit said scale, each graduation of the scale correspondingwith-one linespace movement of the platen.

The member 43 upon, the bevel-gear 21 serves not only use foot, but alsoas a sto bein normally in engagement with the led?- han ed e 64 of therecess 49 in the step,as seen at ig. 2, at which time the gear 21 isosition to become properly enmeshe wit the pinion 20 by means of avertical downwardmovement of the gear and without any disturbance of thepin on or platen, and as a result the pinion may be predetermined y theposition of the sto 51 and equal to a predeterint' ned number of .Lnesspaces without liability of error. Bearing normally aga nst-"the innersde of said foot is drlcal support 45 and ly'ng between the step 44 pate 31 and provided with a 5 ring normal positionof thelatch is seen atFigs. 7

and 10, at which figure theother parts are in the same position as atFig.-2. At Fi s. 3 and 11 it will be seen that the gear has eendepressed, thus (permitting the latch to be swung outwar ly by thespringg67, as at Figs. 11 and 5. The latch nowoccupies a osition overthe foot 43 andprevents the atter from rising. Thus it will be seen thatby simply pressing. down the crank 23 the gear 21 is connected properlywith the-pinion 20 and locked in mesh. Whemthe-crank is swung toward theleft,-said foot 43 contacts with the step 44, asseenat Fig. 12. U on thereturn stroke of the crank when the cot 43 reaches the initial rotativeposition seen at Fig. 11 the foot is again prevented by the latch fromrising. ,Since, however, the crank has not yet reached the fixed stop50, the backward movement of the crank is continued, so that thefoot'is-carried back past the head 65* 1f the latch. Then the foot tripsoff the latch and is thrown: upwardly by the s ring 26, together-wlththegear and crank. he latter is at thstime in contact with the stop 50,as-atFigsrl and 4, and the foot 43 occupies a notch 63, formed in thelatch.

The dimensions of the foot' and latchare Such that during past thelatchthe platen is rotated preferably the backward movement two line-spaces,and hence the forward stroke is made" eaterbfi two line-spaces than therearwar stroke t spaces, insuring that the first l ne of thenew ereof,so that the record-'- sheet is advanced automatically two line-v billshall not be written over or upon the last of the plate 31. This sprinrotates idly' with-said crank-shaft, as at 5g. 12'; but at the latterpart ofthe return movemen'tof said l shaft the sprin engaigps said lug71and is thereby put an er su when the crank is released from'the controlof the operator the spri 'cient tension so that retracts the shaft,

gear and crank until t e foot or stop 43 f reaches the normal position.(Seenat Fig. 2.) I

Thus the initial lpart of'the forward movement of the eran the platen:is'rotated throughout the ent re return movement of the crank, w th theresult already'given of fee-ding the record-sheet forward. two extraline-spaces. During th s between thesto s 50 and V 51 is effectedwithout turn ng the p aten,'but.

initial movement effected by spring 69 the foot 43 .engagesan inclinedface 55 of the 67; The function ofthis latch is to vi rate latch andearns .the latterto normal posit on. (Seen art- 0.)

ra e I he the crank until the bill passes back of the .6 same length asthe stroke ustfi'nade.

The screws 47 pass through slot's,72 and the plate 31,531.11 slots being'concehtr'c with the crank-shaft and of sufficient length to .permIt s1'ght c'rcular adjustment of the rack 5 54 to enable the vertical edge orstop 64 to be adjusted sl. ghtly, so that the gear 21 maybe.

caused-to stand normally-in accurate relation with the pinion 20, thusinsuring" that the gear shall move accurately into mesh with :'o thepinion when the gear is pressed down I also prefer to provide a secondser'es'of'four slots 73 in the "same circular line ,With'the slots 72,.thereby, enabl'ng a substantial. change in,tl1e adjustment of thestoporedgc- 64 to be"made,-if desired. I v

The record-sheet, bill, and intell'eaved ca'i bon may be insertedtogether between the 4 platen 11 and the usual paper-shelf. They arethen carried at ound by the usual pres- 2o sure-I olls 74 until theproper blank line 11 )on" the billis brought to the piinting-point. .lhebill is then-w itten line by line; the usual lineispacing devices beingemployed to advance the sheets until the lash. line is 'VVrltt6n.

2 5 Thezupon the pressureioller-release meohw anisin 75 may be operatedto cast off the roll as 74 in the usual manner, and thebill may then beWithdrawn by pulling it up in the} front of th .Platen, While he recordand "car ,o bon sheets remain in the machine undisturbedxlhe mechanism75 is then pernitf ted to ret11 :n to normal position, and the oporatordepresses the crank 23 and pulls it forwardly as far as it will go. By;this opera- 5 tion thecarbonandrecoid sheets a: e rolled back for adistance equal to the space. occuied by the piinted matter on thebill-head. Rhen a fresh bill is inse1 ted and the crank is turnedibackas far as it will'go, being arrest 40 ed by the stop 50; and, the spiing26 solving ,to disengage the gear 21 from the. pinion 20,-- therebypermitting fr ee rotation of the platen in eitherdirection. By the lastnloventent ofthe crank the fresh bill is bought to-the front of theplaten and is then Wi'ltlIGIl,- the carbon copy thereof succeeding tliocopy of the first-mitten bill u on' the record-sheet, a blank line; apeazing etyvee'n thefs'uccessive records. e second bill niaythen'bewith- 5o drawn, and -a fresh bill inseited'in-the .de-

' scribed manner and the operations're eatedgir Successive-billsuntilthe record-sheet is The positio n to which thestop 51 should 5 5 beset maybe determined by firstinse; ting a bill (onletter-h'ead) in themachine and tu: n-

- ing. the "platen until the fr. s t'- wi iting-line' on the billreaches the p;inting'-point." 'Th en the platen is tin ned backwarely bymeans'of usual "rear feed-roll, and hence-is released from the machineWhen the erank is at this point, the stop 51 is set so that th stroke ofthe crank thereafter shallbe" eeps-min iviththe and backvvardly; I anwith said manually-.0 erable device f0; limit-f Upon adjustingtheringror step 44 circum-f ferentially,js'o.that the slots 73 are brought.into use, it is necess'a? y toreadjust the-circlilar rack 54 also; sothat the fixed stop I upon the latter may be brought into' the -1oproper relation with stop 64. I To adjust the circular rack 54, it isonly'necessary to take'- out the screws 75, which secure itupo ntlieplate 31, and upon tugning therack-areund .3

the screws may be again used to -secure the "7 5 rack as readjusted. Forthis purpose a suf H- T- cient number; of screws'75 should be em; ployedand placed at such inte; vals as to per- 'mit thedesired adjustment. IBy reversing the pinion.20 upon the laten- 8o .axle '12 and placing itjust beneath tl ie lefta hand poLtion ofthe-gear- 21 at Fig; 2 the firststroke of the crank 23 can'be made to give the platen a backwardrotation and: the; return stroke of the'e'rank will turn the-'85 platenfogwardly. Other variations may be" 1-eso; ted to within the scope of myinvention and portions of my improvements may be. used withoutothes. M

Having thus. desdibed my invention, I g'o clain1 1. ,In. atype-\vliting'macbine, the co r'nbination with a revoluble platen a linespace- 'wheel, and a platen frame 0f.;st op's1, means M "esting both thefOlWLZfl and backwar i I utions of the platen; said stops beingrelativelyadjustable I to an extent to limit the movement of the platento, either .nlore ior less than an entirerevolution; at andmeans-whereby said :1 stops are ,noi'mally silenced. so that the platenmay be rotated indefinitely in. either oiiection independently-of'theisto s. t "2.-In a typc-vg-liting machine; 1; ecombi-J j nation witha platen, a line-space wheel, -and 1105" l a platenrflame, said platenbeing normally-' I revoluble at Will ineither'difection toan unlimitedextent; of a manually-operablede vice for rotating the (platen bothfoLwai 'dly I stops to cooperate 1 to ingthe fo-ward andVackward-ievolution ofi the platen to predetermined numbers of line-. Ispaces; said stops being relatively ustable to an extent. to limit themovement-of the 1; 5

reyolution at will. 4 1-. I 3.1 Inatypeqvrit ing n1achine, .the cbmbi Ination withlajrevolub'le platenyof-stoos for arresting both the forwardand "bac ard'zirzo revolutions of the platen; said )laten being; Tnormally revoluble at will in either direction to an unlimited extentindependently of sa id -v stops, and-T'meansbeing provided for renderingsaid st'o 'Qbfliotive at'will; said stops befr platen toeither moreor.less than an-enti-re" v ing relative y adjustable to an extent toliinit' the movementof the-platen to, either mercenl' than an entirerevolution; f1] I n a typewri-t ngkma j n ,t e

I at on vith a-jrevoluble'platen-provided a pinion, of a rack to meshwith said pinion and capable by a single stroke of rotating the platenin-either direction through more than an entire revolution, afinger-piece connected to said rack, means for effecting at will anoperative connection between said finger-piece and platen through saidrack and pinion, and relatively adjustable stops forlimiting the strokeof said rack.

5. A revoluble type-writer plat-en provided the limits of such arebeing'determihed by nation witlta revoluble platen andline-spacingmechanism therefor, of a pinion comiected to the platen, and a largergear normally disengaged fi'omsaid pinion; means being pro- VI e 'forefi'ectmg en agement between said gear and pinion at wil and iel-ativelyadjustable stops being rovided for limiting the movements of sai gearforwardly and back wardliyt 4 7. n a type-writing machine,thecombination with a platen and its axle, of a bevelpinion upon saidaxle, a lar er bevel-gear normally out of mesh with sai(- piniommeanstor holding said ear in mesh with saidpine ion, and s'topsfor limitingthe rotation of said bevel-gear.

8. In a type-Writing machine, the com'bis nation with a platen, of abevel-pinion con centric. therewith and connected thSEI'GtOi fibevel-gear normally out of mesh'with said pinion, means for enablingsaid gear-to move =1nto mesh with said pinion, a finger-p1ece for aidgear, and relatively adjustable stops for imiting the rotation of saidbevel-gear.

l- 9. In a front-strike writin machine, the combination with a platenand platen-irame, of a pinion concentrid with the platen and connectedthereto, a larger gear overlying said pinion with its axis transverse tothe'pinion-axis and normally out of mesh with the pinion, a fingerieceor crank connected to said gear, a circu ar rack concentric with saidgear, a stop adjustable along said rack for arresting said gear, andmeans for enabling said gear and pinion to mesh.

10.. In a type-writin ,machine, the combination with a revolubfeplate'n, of a finger piece or crank mounted for rotation, relativelyad'ustable stops for limiting the stroke of said nger-piece, and means,including movement-multiplying gearing, for connect' ing or:disconnecting said laten from said finger-piece and stops at will; saidstops being'rlatively adjustable to an extent to limit.

said gears;

the movement of the platen to either. more 01' "6 5 less than an entirerevolution at will. 4 I

11. In a type-writing machine, the combination with a revoluble platen,of a crank orfinger-piece mounted for rotation, relatively a'chustablestops for. limiting the vstroke of said finger-piece in both,directions,.and

means, 'mcluding movement multi' lying: gearing, for'positlvelyconnecting said nger- 5:500 at will to said platen so as to'enable thegel-piece to rotate V the platen both for- 7-5 wardly andbackwardly.

1.2. In -a typewriting-machinwthe combination with. aplatenrand aline-space-wheel,. of a pair oi nonnally disengaged gears where of oneisiconnected to therplaten and the=8o otherisprovidedwith.afinger-piece, means for effecting the engagement of.said gears at will, a-stop'forlimiting'Ithe.movement of the! platen bymeans .-of sa1d'gear-,- andimeansxforss mechanica llymaintaining:theen ament of until thejorwardand. fiiicltward strokes of the platen ,eflected thereby ares completed 13'. In a typ of a pairof gears oneconnected to'the platen and the otherQprovided with a finger-piece);said gears being normally.outof-engagementi j -means for locking saidgears in engagement,aw

stop to limit the-movement-of the platen ef-- 9 5 .fected by said gears,and means rendered=e f'-r" fective by the return stroke of the gears,for releasing said locking means.

v 14. Ina type-writ ng machine, the combl of a pair of gears normallyoutof 'engagement,v one gear :being connected to the p atenand the other,being provided with a finger-piece, one of saidgears be :movfable intomesh with the other, a step. or saidmovable gear, 105 ;and a foot whichmay bear upon said ste to maintain the engagement of said ears uring theplaten movement effected't ercby'.

15. In a type-Writing machine, the combi--- nation with a platen, of-apair of normally 1 1o disengaged gears, one thereof being connected tothe platen and the other provided with a fingeriece, one of said gearsbeing movable axia 1y to mesh with the other,-and fixed; step, and afoot upon said movable'gear for 15 bearing upon said step to maintaintheorigagement of said gears, said step having a depression to receivesaid foot when the gears are out of mesh, and a spring for holding saidgearsoutofme w 16. In a type-writing machine, the combination witha.laten, a platen-axle, and'an line-snace Wheel of a pair of relativelymov able evel-gears, said gears being normally out of engagement and onethereof mounted :25 upon the platen-axle, a fingerepiece connectc to theother of saidyg'ears, relatively ad-T just-able stops forlizriiliiigfithe forwar and e vvriting inachinefth'e combi I lnationwith a platen and a line-space Wheel,

' nation with a platen 'and-a-line-spabe wheel, too a 5 stops..

backward strokes of; the platen by means of said gears, and means formechanically marntainin the enga ement of said gears during stro es ofthe platen and disengaging sa d gears at the completion of the platenmovement.

17. In a type-writing machine, the combination with a platen and aline-space wheel, of normally disengaged clutch wheels, a 10 [springtending" to maintain the diserwagement of said clutch-wheels, meansrendered effective by a clutching'movement of one of said wheels forholdin I said wheels in engagement, and stops for imitin the strokes ofthe platen effected by said clutch-wheels.

18. In a type-writing machine, the combination with a platen and aplatcn-frame, of 'a crank mounted upon the platen-frame to swing inahorizontal plane, means, including a pair;ofbevel-gears, for.connecting; the

' crank to the platen atwill, and stops for limting the movements.of-the crank.

19. In a tvpe-writingj-machine, the combination with a plate ianda'pl'atenfram'e, of a crank mounted upon the right-hand end of theplaten-frame" to"""swing in a horizontal plane, the late'n'bein I freelyrevoluble"forwardly] an backward inde endently of said crank, sto s'forlim'iting' t e strokes of- 0 said crank, an means;.,inluding a pair ofbevebgears, for connecting the crank to the platen at-will-'an'd"mechan1cally maintaining 4 such connectionduring the backward andforward strokes f thecra etween said "achi iethe combilate nfalid aplatenframe, of'a'crank no alji yfdisco nnected from t -p at s, m ssmafid ng' -P o 40 and a; bevel-gear; fbrlk'ioniiecting; the platen to thecrank at will, and-'sto' s for limiting the forwardandbackwardstrdkes ofthe crank.

21;, In a. machine, the combination with apIaten, a' platen-axle and aplaten-frame, of a bevel-pinion mounted u' on saidplaten-axle, adownwardly-mow a le horizontal bevel-gearmounted over said axle, aspring for-lifting said par out of engagement with said pinion, a sgear, a crank fixed upon the upper end of said shaft, relativelyadjustable stops for limiting the strokes of said crank, a stop overlyving said gear and having a recess, and a foot upon said gear andnormally occupyingsaid recess. 3

22%. In a type-writing machine, the combination with a platen and aline-space wheel, of a crank normally disconnected from the platen,relatively adjustable stops for limitmg the forwar and backward strokesof said crank, and means rendered effective by the mov'enz. at of thecrank in one direction for connecting it to the platen, so that theplaten can be rotatcd'by movement of the 6 5 crank in another direction.

' means for connecting the crank to the'pla'teri:

-the platen, mcans for hunting the: mov

aft upon said such connection, a stop for limiting the a platen-frame,of a crank mounted to swin horizoutall upon the platen frame, an meansre'n eredefi'ectrve by'downward pres- 7c sure upon the crank to connectthe same with the platenjreleasable' means for mechanically maintainingconnection between the crank and the platen, and stops for limiting thestrokes of the crank. v 7 5 '24. In a type-writing machine, the comb1-'nation with a platen and a platendrame, of a crank'mounted upon theplaten-frame and; normally disconnected from the p'iatenj' I means forconnecting the crank to theplaten 8d at will in such a manner thatrotationtifa! crank effects greater angular rotation ofthe. platen, andmeans for limiting the move ment of the crank. j

25. In a type-writing machine, the combi-. nation with a platen and alatc -frame, of.-.. a crank mounted upon the p aten framei and normallydisconnected from the platen,

at ,will in with a'manner that the 'rotation of pm the crank effectsgreater angular rotation ment of the"crank,- an'd means for'm'chanically maintaining the connection, and finall effecting. the release ofthe platen fi'omth control ofthe crank upon the retnrnofithe;

latter to normal position.

26. In a type-writing machine, the nation with a platen, of normallydisengaged gears, means foreifectingand maintaining roe engagement ofthe gears, 'means',including relatively adjustable stops cooperatingwith g fl for effectin backward and for-- ward rotation of the p aterithrough prede-.

termined arcs, r05 27. In a type-writing machine, the combi nation Withaplaten vand a line-space wheel,

of a crank normally disconnected from the.

platen and locked against rotation, means operable a -movemcnt of thecrank in 1 10 axial direction for releasing the crank'so' that itmay'rotate, and-for c nnecting the crank to the platen, and stop.forlimi'ting theforg ward and backward rotation-of the crank. I

28. In a typ'e m'itingmachine, the combir .33

1 nation with a platen and a line-space wheel,

of a crn nk normally disconnected from the platen and locked againstrotation, means: operable by a movement of the crank; vipl, axialdirection for releasing the crankso that it may rotate, and forconnccting'the crank 1 to the platen, and temporarily maintainingmovement of the crank and means depend ent upon the turning of thecrank, for me- 12 5 chanically releasing the platen from the'control ofSftKl crank.

29. In type-nn'iting machine, the combination with a platen and aline-space wheel, of a horizontally-swinging crank normally 1'30disconnected from the platen and locked againstrotation in eitherdirection, means for releasing the crank sothat it may rotateand'forconnecting the crank to the platen temporarily maintaining such.connection,

stops for limiting the forward and backward rotation of the crank, andmeans for mechanically releasing the platen from the con trol of saidcrank at the completion of the return swing of the latter tonormalposition. i

- 30. Ina type-writingiinachine, the combination with a revolubleplaten, of a inanpally-operable device, means, includin 'a.

. reciprocation of the latter between said stops,

and line-s mechanism, whereby said platen may rotated indefinitelyindependen y of d wim; 4

31. In'a't'ype-writin'g machine, the combination with'aplatenand aline-s acin mech- 'anism therefor, of a normally re eased clutch 1platen.

capableofrotating the platen in either direction, stops for limiting therotation of such clutch-in eachdirec'tion, andmeans for mechanicallymaintaining I the engagement of said clutch duririg-themovements of theplaten which'are liniited by said stops; said clutch being in 'th'e formof 'a 'pair of gears which are relatively movable into and out ofengagement. 1 p r 32. In a type-writi machine, the combinationwitha'revolubiia' platen, of normally ineffective "stopsfor arrestingboth the forward and backward revolutions of the platen, a crank, andnormally'inoperative means, in-

cluding niovement-multiplyingfearing, for

enabling said crank to rotate sal platen and render said stopseffective. l

33. -In atype wfitingmachine, the combination with a revolnble'platenand linespac- 7 ing mechanism there or, of a pinion connected to theplatenya. larger gear 'to drive said pinion, means for limitingtherotationof said driving-gear'in each direction and means for.

silencing said gears; p

34. In a type-writing machine, the combination witha latenand-ra'platen-frame, of .a crank mounted upon the platen-frame, acircular rack concentric with the axis of said crank, stops at least oneof which is adjustable ,alo'ngf "the rack, and means, including normall-"disengaged:movement-multiplying gears, f connecting said crank to said35. In a typewriting machine, the combination with a revoluble platen, aline-space wheel and a platen-frame, of a crank mounjt'a i a ree withthe 36. 'In a type writijng tive "stops, for rotating said terminedarc'eitherless or greater than 'an'e'n' 'ing to a predeterminednumber 'ofias aces.

.i'ection, stops ford'imiting the '-:l-

., -.c L r v movement of clutch 111 each direction,

ed upon the laten-frame, a; circular r' concentric .wit the axis of saidcrank, a 51:0 adjustable along said'rack, and-means, eludingmovenient-multiplyi devicesL-fotF connecting said crank. at*wi l to theplaten; the teeth of said rack'being at'inteifvalsfto f line-spacingmovements of th rl aten. I 4 nation with a revolubleplaten and line-Sp;mechanism, of a hand-wheel for rotatin th platen an unlimited distanceih'either tion at will, ,and means; includingcooper laten either fo wardor backward at will through a prede tire revolution of the 'laten,regardless of the position to which said platen may have beenadjusted-by saidhandswheel. I 37. ha type-writing machine,--the combi 85nation with airevolubleplaten, a line s acing' wheel and a pIaten frameof anon-ma Iyin-Z. effective crank,-;multiplying geaii zgbetweeri saidcrank jandsaid platen, meansf orlfenderi i-ng said crank, effective,and. etc s'for'lim the forward-andbackwardrevolutions of-the I 38 In atype-writingm'a hine,thejcom b' nation with a' revolhble-platen, and-=a,; lii1e spacin DIGOhfiHiSXILLthQIGfOI', of,-' a crank, a r normall,v disengaged: pairof cl tchwheels between: said crank and isaid-pIaten; -sa id crank being movable in onedirection'to ef feet theengagement of said wheels, andin another direction-to effect'theyrotationof said wheels, andstops forlimiting themovement of saidwheels iii-each-direct on;

39. In a type-writing machine, he (zombi -1 i I nation with a revolubleplaten, ofnormally "105- inefi'ective sto s for arresting both forward;and backward revolutions of the platen, a

crank capableiof both turningtheplaten in either direction more 'thananentireirevo lw; 7

tion and rendering such. stops'efiective, andl r'ro' meansnormallylockingsaid crank against rotation in eitherdirectio 40. In atype-writing machine, the combi-. nation with a "revoluble platen, andline-] spacingfmechanism therefor, eta normally r15 released clutchcapable of rotatingthe pla ten r I more than an entire-revolution ineither di t.-

clutch comprising two members, one ofwhich is connected to the platen,and means nor mally locking the other member againstro tion. 7 1

41.111 11 typeswriting machine, the, nation with a platen andplatei1fran' e, crank, a pair of normally. disengaged go I oneconncctedto said crank and the other to said platem: and means normallylocking against rotation, said crankear. f 42. In a type-writingmachine, thecombi fifib a ward and backward*strokes:-of the'crafnk.

' awa 'nation' with a platen, a platen-axle, and a' platengframe,oia'bevel-pinion moun t'edupon the latch-axle, a'bevel-gear normally outof mes with said pinion and mounted upon the 5 platen-frame'iand havinga hub or shaft, a:

crank'upoh' saidgshaftpa spring whereby said gear, is -lieldout-j'offmeshywithsaid pinion, 'arelatively'l adjiistablc stopsflfor'limiting the forward-'andbackward strokes of said crank, 1c and mean"renderedefiective bythe move- 1mm ofsaidgearihto mesh with said pinion,1 for maintaining suchengagement during the for-ward andlbackwardstrokes ct-t'lie era nk.

2-0 the plat mg Irevolublfe independently p .saidc'ra 'eansrendered.effective byyen';

' samelgwith the p'l a ten, "and means for- *maintain ng suchconnectienlduringxthe for- 'ap -w t m, th new nat on with a platen anda' awn-ampe a i c rcular rack mounted upon thepla'temframe,

' i ,a crank mounted eoncentricallywith said-cits '39 cular rack, stopsfor 'said-Ecrank,0ne of, said ;,js't0ps beingadjustable along sai drack, and a 1' pair of normally ineffectivemovement-mul tiplyingbevel-gears for connecting said crank at will to said platen; said-stopsbeing rela-- .tiyely adjustable so as to limit the throw of theplaten toa-predetermined number of' line-1 spaces' -either less-or greatenthananentire revolution of the platen.

x machine, the combi- T ,45. .In a type-writin 0 nation with a platen, oa member capable of 1 'mechanically-limited oscillation, and con- 2'nectibleto the later! at will,,and adjustable m -for mec anicallylimitingthe extent, 6f-f ward and backward rotationnof the 1 platen toeither more or lessthan a complete revolution at',will.

' In a type -writin machine, a platen a device for rotating the platen,means or con 5ognec'tin g said manually opera ble device to the platenat will, and stopsfor limiting the forward and backward strokes of saidmanujelly-operable device, in combination with means forcausing thebackward strokes to be 5 5 shorter .than forward strokes of the plateneffected-by the reciprocation of said manu ally operable device betweensaid stops.

, 47. In a type-writing machine, a revoluble platen, a line-space wheel,aplaten-frame,

and relatively adjustable stops for arrestingboth .forward and backwardrevolutions of 'the platen, in combination with mechanism which causestheforward stroketo be greater than. the backward stroke of said platenbe- 6 5 tween saidstops, for the purpose specified) lire npomthesaidcrankt q connect L erable device.

discoiinecte manually-to erable.

48. Ina type-writing machine, the combination with a platen, of aplaten-frame, a man-' ually-operable devicefor rotatingthe platen,'stops'fonlimiting the forward and backwardstro'kes ofthe platen, andmeans for causing 'tlie'initial' portion of the platenretractingmovement of said manually-operable device between said stops to beineffective, for the purpose specified,

49. Inf'a type-writing machine, the c0mbinationwith a revoluble platenof a normally disconnected manually-operable device for rotating theplaten forward and backward, 1 stops limiting the strokes of saidmanuallyop'erable .device, means for connecting said gianuallyoperabledevice to the platen, leans rendered effective bythc completion of theplaten-advancin stroke cf said manually 1 ope'rab'le devicefor.isconnectingthe manually-operable device from the platen, and means formechanically effecting. a slight: movement of said manually-operabledevice while so disconnected, in the direction of the platen retractingstroke of said manually-opv v Ina type-writing machine the combinationviith;a platen and a manually-operablero tativedevice movableaxially'and n0r mal'lydisconnected from the platen, of meansforenablinglanaxial movement of said rota-' tive 'deviceto connect thelatter to the platen, "a footf upon said: rotativedevice, a latchengaging said'foot to lock said rotative deyiceg, connection with. theplaten, a step for maintaining such-connection during the rota-v 1ootion of the platen forwardly and backwardly. bysaid rotative -device;'sa id step having a recess normally'occupied byjsaid foot, and avspring for effecting the return axial m0ve-. ment of said rotativedevice.

nation with v a platen and a manually-opera able rotative device movableaxially and nor- .mally disconnected from. the platen, of means forenabling an axial-movement of said 'rota 1 10 tive device to connect thelatter tothejplaten',

a foot upon said rotative devicefa latchen gaging said foot to lock saiddevice inconnection with the platen, a step for maintaining i suchconnection during; the rotation of the H5 platen forwardly andbackwardly by 'said rotative device, said st'ehaving 'a recess normallyoccupied by sai foot, and a spring foreffecting the return axial-movementj;.of said rotative device, and a sprin rotative deviceslightly in the"pl aten-retracting-direction, while disconnected fromthe platen," 3 a 52. In a ty'pe-writin machine, the combiconnected tothe platen, agear normal y ,disengaged from said pinion, means foreffecting engagement between said gear and said p in ion at will,relatively adjustable stops for I v 51; In-a type-wr ting machine, thecombifor rotating said 'nation 'with-arevolub e platen, of a inionlimiting the movement of said gear and 1 0,

platen forwardly and backwardly, and means for mechan cally maintainingsaid gear in mesh for a greater platen-advancing than platen-retractingmovement.

53. In a type-writing machine, the combination with a platen and itsaxle, of a bevelpinion upon said axle, a bevel-gear normally out of meshwith said pinion, means permitting movement of said gear into mesh withthe pinion, stops for limiting the rotation backward and forward of saidbevel-gear, and meansfor mechanically holding said gear in mesh withsaid pinion longer during the platen advancing stroke than during theplaten retracting stroke, for the purpose specified.

54. In a type-writing machine, the combination with a platen, of aplaten-rotating gear normally disconnected from the platen, a footprovided uponsaid gear, a spring for keeping position, a pinion.connected to the platen, said gear being movable axially into mesh withsaid pinion, a normally'idle latch which engages said foot to maintainsuch mesh, and a step coincident with said latch and. against which saidfoot may bear during the rotation of said gear and platen.

55. nation with a platen, of a platen-rotating gear normallydisconnected from the platen,

a foot for said gear, a pinion connected to the platen, said gear beingmovable into mesh with said pinion, a normally id'le latch which engagessai.. foot to maintain such mesh, a step coincident with said latch andagainst which saidfoot may bear during the rotation of said gear andplaten; said foot being'movable past said latch upon the return strokeof the gear and platen; and astop for. limiting the return rotation ofsaid gear.

56. In a type-writing machine, the combination with a platen,-of'a'platen-rotating gear normally disconnected from the platen, a loot forsaid gear, a spring for keeping said gear in normallydisconnectedposition, a pinion connected to the platen, said gear being :movebleaxiallyinto mesh with said pinion, a normally idle latch which engagessaid foot to maintain such mesh a step coincident with said latch andagainst which said l'oot may bear during the rotation of said gear andplaten; said foot being movable past said latch upon the return strokeof the gear and platen; and a stop. for limiting stroke of said gear;said latch bei'n said gear in normally disconnected.

In a type-writing machine, the c0mbi' to normal idle said foot, a springfor efi'ecting-sufficient 75 device,

' return wovd ble ;a 1011 connected to the platen, said gear beingposition by a forward rotation movable axially into mesh with saidpinion, a

normally idle latch which engages said foot to maintain such mesh a stepcoincident with said latch and against which said foot may bear duringthe rotation of said gear and platen; said foot being movable past saidatch upon the return stroke of the gear and platen ,2 and a stop forlimiting the return stroke of said gear; said latch being movableposition by a forward rotation of forward movement of the gear to enablesaid foot to press said latch to normal position, and astop forlimitingsuch movement of the gear.

58. Ina type writin machine, the combinationwitha laten, oamanually-operable device norma y disconnected from the platen, meansfor connectingsaid devicejto the platen, stops forlimiting the forwardand backward strokes of said manually-operable adjustable, an armwhereon said adjustable stop is'pf voted, said'arm being pivotedconoentrically with said manually-operable de-' vice, and said stophaving a tooth to engage' said rack, a spring for maintaining engage- 9oment of said tooth with said rack, and an arm having a lin er to engagesaid rack on the opposite side thereof from said stop.

59. In a type-writing machine, the combination with'a platen and a gnormally disconnctedimanually-operable device for rotating the platen,means for connecting said manually-operable device to the platen at willstops for limitingthe forward and backward either set of which nunreceive said screws.

HARRY s. .uerousmok. Witnesses:

E., Y. N.-\sl[ 'ldli i oekmhw.

laten, of a platen rotating 60 a rack along which one of-said stops isplaten-frame, of a 5 movements of said manually- I00 operable device, arack llXOd upon the frame mg means includingasetof serewswhich hold m5

